meth injection can make an otherwise risky and hard tune much safer. Failsafes are far ranging...but by far the best I have seen is using the coolingmist controller, it has a 0-5v ouput when the pump is on, which you can link to any aftermarket EBC. If the 5volts isnt there, boost gets shut down. For running dry, same idea, most companies sell a 0-5v output tank level sending unit (float swtich) just hook that into a boost controller, everything gets shutdown.

you just have to think creatively. Some people link those 5 volt outputs into the ECM as well, through PIDs that arent being used by the pcm. Little harder to work through but possible. I have a scangauge to measure knock, and have the LED warning lights set to 1* of knock. Those lights come on, I lift immediately no matter what the scenario (mid race, at the track, driving down the street).

The cooling effect of water injection will prolong the life of the engine, help prevent carbon build up, and even prolong your spark plugs' life, LOL. I dont see any real downside. Meth is something to consider heavily if youre ready to take the leap on a tmic. It could easily take the place of that investment and save you some $$.

+1 to that. Meth is great if it's done correctly and you have the right supporting mods. I have a friend in my club that's running meth off of a 12 gallon tank in his trunk. He's putting down just over 400awhp and swears by meth to anyone that asks him about it. He's got me convinced. I'm going to the cool-stuff in a few weeks =]